Once we get through Wednesday's freezing drizzle potential all eyes will
turn to the end of the week as another winter storm takes aim on the
Plains, Midwest and Great Lakes. Low pressure will develop over the
Rockies Friday morning, moving east across the middle of the country and
into the Midwest by Friday evening.
Strong high pressure over the eastern Great Lakes will feed dry air into
northern Illinois and southern Wisconsin during the day Friday, likely
keeping the first half of Friday dry. Temperatures will still be below
freezing during the afternoon as moisture increases from the south.
This will allow a period of snow to develop west of Mississippi River,
spreading east into northern Illinois and southern Wisconsin through
sunset. The track of the low will ultimately determine where the
heaviest snow occurs Friday, but there is the chance for accumulating
snow heading into Friday night.
The chance, then, for temperatures to continue to warm Friday night into
Saturday brings the question on whether or not we will see any sleet,
freezing rain or just rain Friday night into Saturday. Right now it
looks like temperatures will warm above freezing Friday night into
Saturday morning, switching any wintry weather over to more rain
showers. Colder air then quickly wraps in behind the low Saturday
causing temperatures to quickly drop Saturday night, with highs only in
the teens on Sunday.
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